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What is molecular weight?
Molecular Weight : The molecular weight of a molecule refers to the sum of the atomic weights of all the atoms making up the molecule. The gram molecular weight of a substance is the molecular weight expressed in grams. For example, the atomic weight of oxygen is 16, and that of hydrogen is 1, so one gram molecular weight, or mole, of water equals 18 grams.
Since one mole of any substance contains the same number of molecules, 6.022 x 1023, the concept is useful in describing chemical reactions. In biological experiments, the concentration of a solution, that is, the amount of solute dissolved in the solvent, is usually expressed in terms of molarity. A molar (1M) solution contains a mole of solute in 1 liter of solution. Note that by convention, "mole" is abbreviated as "mol."
Environmental factors of viscosity and plasticity a) Temperature affects the viscosity of a colloid. Generally, its viscosity decreases as the temperature increases. For e.g.
Think back to the patterns of predator-prey cycling from Sections 2 and 3. Which of the three predator functional responses would you expect to be most likely to give stable popula
What is the difference between xylem and phloem? Both xylem and phloem are vascular tissues found in a plant. Xylem is a tubular structure, which is liable for water transport
INTRODUCTIO N - Endocrinolog y - Study of endocrine glands, hormones and their effects. Thomas Addison - Father of endocrinology. Described hormonal disease in 1855 kn
Studying life histories of insects Cut large rectangular holes in the sides of a big cardboard container and cover them with muslin folded over at the edges and gummed or paste
Which of these lists contains the four postulates of natural selection? Which of these lists contains the four postulates of natural selection? Uniform population, heritable trait
Clone (verb) is the action of duplicating the genetic material within a vector. To clone the piece of DNA, one would insert it into some type of the vector (like, a plasmid) and p
Select all that are true or correct regarding a buffer: alternately donating and accepting ions a set of chemicals that work together to resist pH change often a weak acid or base
A bee visits several flowers in succession on a single willow herb plant. In doing so, the bee transfers pollen from the younger flowers, near the top of the inflorescence (group o
give main charecters of protozoa
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